#use wml::openssl-macros area=docs page=SSL_CTX_get_ex_new_index

<title>Documents, SSL_CTX_get_ex_new_index(3)</title>

<h1>SSL_CTX_get_ex_new_index(3)</h1>

#use wml::imp::generic

{:
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	<LI><A HREF="#NAME">NAME</A>
	<LI><A HREF="#SYNOPSIS">SYNOPSIS</A>
	<LI><A HREF="#DESCRIPTION">DESCRIPTION</A>
	<LI><A HREF="#SEE_ALSO">SEE ALSO</A>
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<H1><A NAME="NAME">NAME</A></H1>
<P>
SSL_CTX_get_ex_new_index, SSL_CTX_set_ex_data, SSL_CTX_get_ex_data -
internal application specific data functions

</P>
<P>
<HR>
<H1><A NAME="SYNOPSIS">SYNOPSIS</A></H1>
<PRE> #include &lt;openssl/ssl.h&gt;
</PRE>
<PRE> int SSL_CTX_get_ex_new_index(long argl, void *argp,
                CRYPTO_EX_new *new_func,
                CRYPTO_EX_dup *dup_func,
                CRYPTO_EX_free *free_func);
</PRE>
<PRE> int SSL_CTX_set_ex_data(SSL_CTX *ctx, int idx, void *arg);
</PRE>
<PRE> void *SSL_CTX_get_ex_data(const SSL_CTX *ctx, int idx);
</PRE>
<PRE> typedef int new_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
                int idx, long argl, void *argp);
 typedef void free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
                int idx, long argl, void *argp);
 typedef int dup_func(CRYPTO_EX_DATA *to, CRYPTO_EX_DATA *from, void *from_d,
                int idx, long argl, void *argp);
</PRE>
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<H1><A NAME="DESCRIPTION">DESCRIPTION</A></H1>
<P>
Several OpenSSL structures can have application specific data attached to
them. These functions are used internally by OpenSSL to manipulate
application specific data attached to a specific structure.

</P>
<P>
<CODE>SSL_CTX_get_ex_new_index()</CODE> is used to register a new index for
application specific data.

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<P>
<CODE>SSL_CTX_set_ex_data()</CODE> is used to store application data at <STRONG>arg</STRONG> for <STRONG>idx</STRONG>
into the <STRONG>ctx</STRONG> object.

</P>
<P>
<CODE>SSL_CTX_get_ex_data()</CODE> is used to retrieve the information for <STRONG>idx</STRONG> from
<STRONG>ctx</STRONG>.

</P>
<P>
A detailed description for the <STRONG>*_get_ex_new_index()</STRONG> functionality can be found in <A HREF="../crypto/RSA_get_ex_new_index.html#">RSA_get_ex_new_index(3)</A>. The <STRONG>*_get_ex_data()</STRONG> and <STRONG>*_set_ex_data()</STRONG> functionality is described in
<A HREF="../crypto/CRYPTO_set_ex_data.html#">CRYPTO_set_ex_data(3)</A>.

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<HR>
<H1><A NAME="SEE_ALSO">SEE ALSO</A></H1>
<P>
<A HREF="../ssl/ssl.html#">ssl(3)</A>,
<A HREF="../crypto/RSA_get_ex_new_index.html#">RSA_get_ex_new_index(3)</A>,
<A HREF="../crypto/CRYPTO_set_ex_data.html#">CRYPTO_set_ex_data(3)</A>



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:}